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Cisco ONS 15454 Reference Manual, R7.0
78-17191-01
Chapter 15 Performance Monitoring
15.6 15.6.4 CE-Series Ethernet Card Performance Monitoring Parameters
15.6.4.2 CE-Series Card Ether Ports Utilization Window
The Ether Ports Utilization window shows the percentage of Tx and Rx line bandwidth used by the
Ethernet ports during consecutive time segments. The Utilization window provides an Interval
drop-down list that enables you to set time intervals of 1 minute, 15 minutes, 1 hour, and 1 day. Line
utilization is calculated with the following formulas:
Rx = (inOctets + inPkts * 20) * 8 / 100% interval * maxBaseRate
Tx = (outOctets + outPkts * 20) * 8 / 100% interval * maxBaseRate
The interval is defined in seconds. The maxBaseRate is defined by raw bits per second in one direction
for the Ethernet port (that is, 1 Gbps). The maxBaseRate for CE-Series Ethernet cards is shown in
Table 15-14.
Note Line utilization numbers express the average of ingress and egress traffic as a percentage of capacity.
15.6.4.3 CE-Series Card Ether Ports History Window
The Ethernet Ether Ports History window lists past Ethernet statistics for the previous time intervals.
Depending on the selected time interval, the History window displays the statistics for each port for the
number of previous time intervals as shown in Table 15-15 on page 15-31. The listed parameters are
defined in Table 15-16 on page 15-32.
15.6.4.4 CE-Series Card POS Ports Statistics Parameters
The Ethernet POS Ports statistics window lists Ethernet POS parameters at the line level. Table 15-21
defines the CE-Series Ethernet card POS Ports parameters.
Table 15-21 CE-Series Card POS Ports Parameters
Parameter Definition
Time Last Cleared A time stamp indicating the last time that statistics were reset.
Link Status Indicates whether the Ethernet link is receiving a valid Ethernet signal
(carrier) from the attached Ethernet device; up means present, and down
means not present.
ifInOctets Number of bytes received since the last counter reset.
rxTotalPkts Number of received packets.
ifInDiscards1The number of inbound packets that were chosen to be discarded even
though no errors had been detected to prevent their being deliverable to a
higher-layer protocol. One possible reason for discarding such a packet
could be to free buffer space.
ifInErrors1The number of inbound packets (or transmission units) that contained errors
preventing them from being deliverable to a higher-layer protocol.
ifOutOctets Number of bytes transmitted since the last counter reset.
txTotalPkts Number of transmitted packets.
ifOutOversizePkts1Packets greater than 1518 bytes transmitted out a port.
gfpStatsRxFrame2Number of received GFP frames.